I looked at McMaster Carr and wanted to get a 3-1/2" pin style wrench
5475A22
Fixed Pin Spanner Wrenches for Holes for 3-1/2" Circle Dia, 11/32" Pin Dia, 5/16" Pin Length
Should I make the mating part hole 11/32" or 1/64 larger for clearance? I was thinking that since they said 11/32 pin...
So, if the "working diameter" is say 11/32" then that should be the hole size that fits the spanner wrench pin which is manufactured slightly smaller to fit the hole?